Tmeasure is an add-on that functions as a digital measuring tape inside Blender. It calculates the total length of all selected edges within Mesh Edit Mode, whether they form straight lines or complex curves. Instead of measuring linear distance between two points, it computes the exact path length along the selected geometry.

The tool adds a dedicated panel to the 3D Viewport where users can trigger calculations and view results. It automatically stores the last five measurements for quick reference and comparison. The add-on respects scene unit settings and requires the active object to have its scale applied for accurate results. It is useful for tasks such as calculating seam lengths for clothing, estimating material requirements for cables in 3D printing, or verifying proportions.